Gas-lamp



GAS LAMP. y APPLICATION FILED FEB. 4, 1920. 1,354,730. Paiented Oct. 5, 1920... ly@ i v w if 22 w j Y 5327 I 2.9: 4 12 f b Z mi, i 25 UNITED STATES PATENT OFFICE.

CORNELIUS'DANAHER, '0F PHILADELPHIA, PENN SYLVANIA.

ens-LAMP.

Patented" oet. 5, 1920.

Application filed February 4, 1920. `Serial No. 356,157".Y

DANAHER, residingV at a new and useful Gas-Lamp', of which the following isl a specification.

T he device forming tne subject matter of f l this application is a gas lamp, andlo'ne object ofthe invention is to providenevel means for holding the globes in place with respect to the burner structure.

Another object of the invention is to provide a gas lamp so constructed that the passage of' the products of combustion will be encumbered to a minimum extent.

Another object is to improve generally and to enhance the utility of devicespf that type to which the invention appertams.

With the above and oth'er objectsin view, which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that, within the scope of what is claimed, changes 1n the precise embodiment of the invention shown can be made without departing from omitted; Fig. 3 is a section taken approx1V mately on the line 3 3 of Fig. 2; Fig. 4'is 'a frag-mental transverse sectionshowing ai slight modification in theinvention; andY Fig. 5 Yis Va section taken approximately on the line 5-5 of Fig. 4.

The device 'forming the subject matter of this application includes an annular .bodyvr comprising a strip 1 of mica, surrounded by a strip 270i colored material, suchV as ribbon. The strips 1 and 2 are embraced,

at intervals, by transverse members 3 of inverted U-shape, the parts above described being engaged at their upper edges by a top ring 4 of inverted U-shape, and being embraced at their lower edges by a bottom ring 5 of U-shape. t members 3 are provided with inclined lips, extended circumferentially of the .annular body above alludedto, the lips 8 being fehnadeiphia and State of Pennsylvania, have invented The outer walls of the adapted to engage the beveled edges 6 of transparent pieces 7, which may be made of glass or any other suitable` material, the ends 'of said pieces resting against'the inner walls of the members 3, as indicated best in Fig. 4. It will be seen that the members 3 are so constructedthat the glass pieces 7 may be used in place ofthe strip 1 of mica and the strip 2 of colored material, if desired.V The construction alluded to permits the manufacturer to make up the annular body in a variety of ways, as occasion may demand.

' The' body above described supports anv Y upper globe 9. A lower globe 10 coperates with the body and is held in place by set screws 11 extended through the bottom ring 5 and adjacent parts. A relatively Vsmall Bunsen tube 12 Vpasses through the body and communicates with a gas supply pipe 14, the Bunsen tube having a suitable air control 15 of any desired construction` The numeral 16 denotes an L-shaped member having a tapered bore 17, the L-shaped memberembodying an end'wall 18 receiving the inner end of the Bunsen ltube 12. The upper en d of the L-shaped member 16 has an offset annular flange 19. The numeral 2O denotes, generally, a goose! neck, including cylindrical ends 21 and 22 and a flattened crown 23. The cylindrical end 01 ot the gooseneck 20 is held frictionally in the iange 19 of the member 16, to afford a slip joint, theV cylindrical end 22 being held frictionally in a mantle support 24'of any desired construction, to afford a slip joint. A piece of gauze 100 is located in the mantle support 24 at the inner end of the part 22.

A pilot tube 25 extends through the body, adjacent to the lmember 16 and carries a pilot burner 26, the function of which is clearly understood by those skilled in the art.

In the outer surface of the member 16, a

same on the member 16, and sinceV the-intermediate portion 29 -of the bracket is proi 9v and 10. Since the diameter ofthe VBuiisen tube 12 is relatively small, compared'withf the diameter of the borrel? o f the member 16, back pressure in the Bunsentube will f. be reduced to a .minimum-l Owing to the .l Vfact that thegoo'seneck 20 is flattened-or thinnedtransversely-'as indicated at 23, the

i5 will find a ready exit, and their passage will be encumberedand impeded to a minimum g leXtent. l l v In devices of the kindhereinbefore deheated vair andthe products of combustion scribed, .a considerable amount of dificulty has beenrexperienced, owing to the vfact that dust taken in withthe airat the inlet-15. As a consequence, it is often necessary. to

removethe gooseneck 2O from the member 4,16 and from the mantle support 24. The

practice heretofore has been to remove the A ,member 16 fromthe Bunsentube 12 but these parts generally are threaded, together and since the Bunsen tube 12 is ofsmall diameter, the Bunsentube is likely tofbe twisted off -or broken. Again, if Vthe gooseneck 20Yis threaded to the burner support 24 andto the member 16 much diliiculty is ei;- perienced in separating these parts, in order to get Aat the gauze-100. If the gooseneck 20 is threaded at its ends to the burner sup- A port 24: and to the member. 1'6, the parts Vbecome baked together owingto theintense heat. In the device forming the subject matter of this application, there areslip jointsjbetween the parts 21V and 19,and, preferably, between the parts 22 and 2li.

vThe gooseneck 20, therefore, may be lifted readily off the member'16` andthemaiitle support 24 may be removed from the goosebefore described, whereV the parts are threaded together, it is necessary,` not iiiv 1 frequently, to call intorequisition the servjices' of a pipelitter or lamp expert, since Y a device of this kind cannot be taken apart and assembled by a person of average or less than average mechanical ingenuity. The slip joints which form one'of the characteristic features of this invention, make .-it possible to take the'device apart and to set itup again, practically without the use 4,of tools, and theA operation may be carried y on by a person having smally mechanical skill.v vThe ease with which theparts may be separated', prevents an injury to-the VAmantle, resulting from jars, a mantle being asis well known an exceedinglyvdelicate article,x Since the gauze 100. can be remove-'l .without difliculty, the device will not be- Y,

come foul and a discoloration of the ceiling willbe prevented.

A gas mantle may beV damaged in the factory, lin a store, or before it is placed on `a gasv lamp, by the handling of the mantle,

or otherwise. If the mantle has been dented VYor creased, that defect'cannot be detected luntil the mantle is burned off, the mantle being treatedwith a coating of collodion dented a piece will fall out, orif the mantle has been creased, the mantle will crack open. Thus, in either case, opening is formed *in the imintle through-which opening the 1 flame is bound to shoot.- In gas lamps as at the gauze'lOO will choke up, notably with w present Qconstructed, the flame `sheeting through the Vopening. as above described, tends to .crack the glass, on account of the `glassbeing so close, to the mantle. In the been' damaged', the vmantle may still be used and there is no occasion for purchasing a new mantle and throwing the old one away. The device forming the subjectlmattei of this application obviously provides a means whereby defective mantles may be used without endangering -the glass portion of :lamp forming the subject matter'of this apl plication,'=the flame cannot reach. the glass. .Therefore, although the mantle may have the lamp, asaving beingeii'ected, since l mantles, hitherto subject to destruction as being defective, may be' employed to advantage, and without danger to the lamp.

Having thus described the invention, what is claimed is A Y 1. In a device of the class described, an

annular body, a globe supported by the body; a kBunsen tubel passing through the ,-body; anangle member connected with the lBunsen tube;;a gooseneck communicating -withfthe angle member, the lgo'oseneck being thinnedintermediateits ends; and a mantle Vsupport carried by the gooseneck.

- 2. In a device of the-class described, an annular body; a Bunsen tubey passing through the body; an angle member communieating with the Bunsen tube; a goosekneck forming a continuation of the angle member; a mantle support .assembled with the'gooseneck'; and a bracket connected with the angle member and with the body.

3. In a device of the class described, an annular body; an angle member within'the body; means for supplying fuel tothe angle angle member; amantle support carried by the gooseneck; and aibracket"including diverging arms, theextremities of the arms being connected to the body, and the interumember; a gooseneclr assembledrwith the mediate portion of the bracket being connected to the angle member.

4. ln a device of the class described, an annular body including top and bottom rings of U-sliape; and transverse members received within the rings, the transverse members comprising outer end inner walls, the'outer walls being provided with outwardly extended lips inclined circumferentially of the body and located between the 10 rings.

ln testimony that I claim the foregoing as my own, I have hereto aixed my signature in the presence of two witnesses.

CORNELIUS DANAHER. litnesses WV. A. MCCULLON,

THOMAS F. MURPHY. 

